PROBLEM TO BE SOLVED: To provide a vehicle approach communicator capable of emitting even a vehicle approach report sound in a high frequency region in a compact structure.SOLUTION: A vehicle approach communicator includes a single piezoelectric element sounding body 3 which has a first resonance frequency f1 and a second resonance frequency f2 on a low frequency side and a high frequency side respectively, a gain adjusting circuit 11 in which a vehicle approach report signal 11a of a frequency band including the first resonance frequency f1 and the second resonance frequency f2 is inputted, to output the vehicle approach report signal 11a to the piezoelectric element sounding body 3, and an amplifier circuit 13 and a step-up drive circuit 14.SELECTED DRAWING: Figure 1

    【課題】コンパクトな構造で高周波域の車両接近通報音も発することが可能な車両接近通報器を提供する。【解決手段】低周波側と高周波側にそれぞれ第1の共振周波数f1および第2の共振周波数f2を有する単一の圧電素子発音体3と、第1の共振周波数f1および第2の共振周波数f2を含む周波数帯域の車両接近通報信号11aを入力し、当該車両接近通報信号11aを圧電素子発音体3に出力するゲイン調整回路11、アンプ回路13および昇圧駆動回路14とを備える。【選択図】 図1


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    Title :

    VEHICLE APPROACH COMMUNICATOR


    Additional title:

    車両接近通報器


    Contributors:

    Publication date :

    2017-09-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



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